Narrative:

Mistook runway 31L for taxiway F at midway airport. Ground control directed a left turn from runway 22L to taxiway F. I accidentally turned left from runway 22L onto runway 31L. When informed of this error, I made a right turn onto taxiway Y and thence onto taxiway F.

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Original NASA ASRS Text

Title: RWY INCURSION BY A LOW TIME PVT C172 PLT WHEN HE MISTAKES RWYS 13R, 31L FOR TXWY F, AFTER TURNING OFF LNDG RWY 22L AT MDW, IL.

Narrative: MISTOOK RWY 31L FOR TXWY F AT MIDWAY ARPT. GND CTL DIRECTED A L TURN FROM RWY 22L TO TXWY F. I ACCIDENTALLY TURNED L FROM RWY 22L ONTO RWY 31L. WHEN INFORMED OF THIS ERROR, I MADE A R TURN ONTO TXWY Y AND THENCE ONTO TXWY F.

Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.